AAC to MP3 Converter

Convert AAC audio files (M4A, AAC) to high-quality MP3 format

Drag & drop your AAC / M4A files here or click to browse

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How to use this converter:

  1. Select AAC / M4A audio files using the button or drag & drop
  2. Adjust MP3 bitrate, sample rate, and channel mode in the settings panel (right)
  3. Click "Convert to MP3" to decode AAC and encode to MP3
  4. Preview the resulting MP3 files with built-in players
  5. Download individual tracks or all as ZIP

Conversion runs locally in your browser using Web Audio API and LameJS – files never leave your device.